netdev - Re: [PATCH net-next-2.6] pktgen: speedup fragmented skbs

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Date:	Tue, 25 Jan 2011 09:22:07 -0800
From:	Ben Greear <greearb@...delatech.com>
To:	Eric Dumazet <eric.dumazet@...il.com>
CC:	David Miller <davem@...emloft.net>, netdev <netdev@...r.kernel.org>
Subject: Re: [PATCH net-next-2.6] pktgen: speedup fragmented skbs

On 01/25/2011 09:13 AM, Eric Dumazet wrote:
> We spend lot of time clearing pages in pktgen.
> (Or not clearing them on ipv6 and leaking kernel memory)
>
> Since we dont modify them, we can use one zeroed page, and get
> references on it. This page can use NUMA affinity as well.
>
> Define pktgen_finalize_skb() helper, used both in ipv4 and ipv6

Some devices, like vlans, can change the skb, but perhaps they
will not actually mess with the paged data?

Thanks,
Ben

-- 
Ben Greear <greearb@...delatech.com>
Candela Technologies Inc  http://www.candelatech.com

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